Surface ultraviolet-B radiation and atmospheric CO2 concentrations have increased as a result of ozone depletion and burning of fossil fuels1, 2. The effects are likely to be most apparent in polar regions3 where ozone ...

Surface ultraviolet-B radiation and atmospheric CO2 concentrations have increased as a result of ozone depletion and burning of fossil fuels1, 2. The effects are likely to be most apparent in polar regions3 where ozone ...

While there is considerable knowledge of the effects of enhanced levelsof ultraviolet radiation (UV) on plant species, much less is known of theimportance of ambient levels of solar UV, particularly on natural plantcommunities. ...

1 The responses of sub-Arctic heathland vegetation to enhanced UV-B radiation and increased summer precipitation over 7 years were investigated in a field experiment in northern Sweden. 2 Growth, phenology and reproduction ...

This study investigated the effects of long-term enhanced UV-B, and combined UV-B with elevated CO2 on dwarf shrub berry characteristics in a sub-arctic heath community. Germination of Vaccinium myrtillus was enhanced in ...

Effects of enhanced UV-B (representing a 15% ozone depletion) on cyanobacterial nitrogen fixation were measured at a high arctic site (Adventdalen, 79°N, Svalbard) and a subarctic site (Abisko, 68°N, Sweden). Nitrogen ...

We investigated the effects of long-term (7-yr) in situ CO2 enrichment (600 µmol/mol) and increased exposure to UV-B radiation, the latter an important component of global change at high latitudes, on the ice nucleation ...